HomeFish encyclopediaRay-finned fishesPerch-like fishGobiesFishnet pygmy goby Fishnet pygmy goby (Trimma agrena) Scientific name: Trimma agrena Winterbottom & Chen, 2004 The Fishnet pygmy goby (Trimma agrena) is a marine fish of the family Gobiidae. Native range: Western Pacific, Malaysia, the Philippines and Indonesia. BiologyDiagnosis: Distinguished by the combination of the following features: no predorsal scales anterior extension of body scales along the side of the nape from half-way between the eye and the shoulder spot in juveniles to just behind the eye in adults; body light brown with orange spots or stripes on the head, a dark greyish orange shoulder spot above pectoral fin base, and scale pockets strongly outlined with dark brown chromatophores with an orange spot at the junction between adjacent pockets in the same longitudinal row.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameTrimma agrenaFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length2.08Depth range0–11 m (0–36 ft)EnvironmentMarine; reef-associated; depth range 0 - 11 mClimateTropicalDistributionWestern Pacific: Malaysia, the Philippines and Indonesia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026